"Let's performance!" promises the whacky Japanese video for the Otamatone iPhone app. The Otamatone, if you remember, was the sperm (or tadpole)-looking musical instrument that you play by pulling its lips down or spreading its cheeks. Sound dirty, yes.
The Otomatone is the new instrument created by Novmichi Tosa, and it's maybe the most Japanese instrument ever. Also, it's awesome.